Except transporting it over the grid usually doesn't make sense, and is neither easy nor simple nor cheap. So solar only really makes sense if you have a use for it nearby or even onsite. So for companies/factories/datacenters/... absolutely. To keep cities powered? Less so.
It's simpler and cheaper than any alternative.
You just need ultra high voltage transition lines and a grid that can real-time redistribute load + generation.
Ultra high voltage towers are all over Texas. If they can make them work there (with the extreme heat, tornados and absurdly long distances involved in that state), they can work most places.